8206code.fm Page 113 Tuesday, July 7, 1998 11:57 AM
DIAGNOSTIC CODE 5-1 Test 4
Test 5
Checking for an open in the signal line in the harness
Checking for continuity to ground on the signal line
Figure 180 — Jumper between Pins A and B
Figure 182 — Continuity from Pin L1 to Ground
1. Turn the ignition key to the OFF position. 2. Disconnect the J1B connector from the V-MAC II module. 3. Check for continuity from J1B connector pin L1 (the TPS signal [+] line) to a good ground.
If there is continuity, locate and repair the short to ground in the signal line. Retest to be sure the problem has been corrected. Figure 181 — Continuity between Pins L1 and L2
If there is no continuity, proceed to Test 10.
1. Turn the ignition key to the OFF position. 2. Connect a jumper between harness connector pins A and B, on the harness side of the connector. 3. Disconnect the J1B connector from the V-MAC II module. 4. Check for continuity between J1B connector pins L1 (the TPS signal [+] line) and L2 (the TPS voltage reference [+] line).
If there is continuity, disconnect the jumper and proceed to Test 8. If there is no continuity, locate and repair the open in the TPS signal line (pin L1) in the harness or connectors. Retest to be sure the problem has been corrected.
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